13题,用them还是which,求详解

13题,用them还是which,求详解 13题求详解 13题求详解 13题,求详解 13题,求详解 13题!求详解 13题求详解 We can't hope to solve all the ecological problems,____arise directly or indirely from overuse ofthe earth's resources.A.many of them B.in which many C.many of which D.of which they选什么.求详解 30题中,什么时候用which,什么时候用them which of them is your classmate?回答用none还是nobody/no one 请英语语法高手回答!I have got to a stage where i can't cope.这句话中的where是用with which替代还是用at which更合理,求详解. 求in which,for which,on which,at which的用法详解 求化学13题详解 第13题求详解 求详解第13题 关于many of whichThere used to be a lot of coal mines,many of ---- have been closedA.which B.them 请问为何答案为A?请解释,谢谢many of which是何意？为什么用Which?请详解 看一道高中英语选择题 考察代词--Which coat would you prefer,sir?--I'll take____to have a change sometimes.A.all them B.them all C.both them D.them both需要详解~~~还有,那个all of them和both of them是怎么用的?能不能 Maybe you have a habit that/which is driving your family crazy为什么用 that/which 求详解